CAT 5 vs 5e vs 6(all 6 types) vs 7

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I'm just wondering what the difference is between CAT 5, 5e, all types of 6 and 7. If someone could put up a comparison chart or some links it would help a lot.

 

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http://lmgtfy.com/?q=cat+5%2C+6%2C+7

Try that.

 

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Is there something more reliable than that source, seeing how I've never heard of them?

 

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Just click the link and wait. The source is world known.

 

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So apparently there are no specifications and standards for CAT6 or CAT7 but yet newegg says that the CAT7 cable meets TIA/EIA-568-B.2-10 Specifications. Makes perfect sense.

 

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TIA/EIA-568-B.2-10 is Cat 6, Cat 7 is just a proposed category that hasn't been officially adopted yet.